单项选择题

The energy ______ by the chain reaction is transformed into heat.

A．entrusted
B．released
C．delivered
D．conveyed
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单项选择题
The gale has rather increased than shown any ______ of abating.
A．badge
B．mark
C．token
D．symptom
单项选择题
Despite efforts to eradicate it, corruption persists, though it doesn't ______.
A．speed
B．hasten
C．accelerate
D．boost
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